Lord help me be ready

so my pastor has asked me to help with the youth ministry at our church, so now i am trying to quit smoking cigars, cigs, and weed. Plus quit drinking, but it is kicking my ass, and I cant help but to wonder, am i ready. I pray that God gives me the strength, and patience that it  is going to take to do this and achieve the goals that i have set in my life. my computer is still not letting me up load pictures to my journal but i am trying to figure it out on a positive note i finished the summer semester with an A in positive child guidance and a B in my creative arts for children class.